Breadcrumbs/header

When activating the breadcrumbs some of the pages seem to display the breadcrumbs fine while other pages display them somewhere in the body content.

Another related issue is that all of these pages of which the breadcrumb is displayed in the body content don’t seem to display the page title in the header.

Examples:
https://kuiphuis.sitelook.nl/mobiele-telescoopkranen/ is working fine as opposed to https://kuiphuis.sitelook.nl/historie/ which is an example of a page not displaying the page title.

I’ve deactivated the breadcrumbs for now.

Cheers.